Former for combination fiber paper twine



Nov. 24, 1931, H. s. MEARS 1,832,942

FORMER FOR COMBINATION FIBER PAPER TWINE Filed Nov. 29. 1929 lil- Patented Nev. 24, 1931 UNITED STATES PATENT OFFICE HENRY S. HEARS, OI PORTLAND, OREGON, ASSIGNOR TO INTERNATIONQL EABVESTEB COMPANY, A CORPORATION OF NEW JERSEY FORMER FOR COMBINATION" FIBER PAPER TWINE Application filed November 29, 1929. SerialNo. 410,413.

paper and fiber twine. More particularly, the

invention relates to improvements in a forming device, or so-called frog, for such mechanism of the type illustrated in the United State patent to Rice 1,320,922 of Nov. 4, 1919.

Paper covered fiber twine must withstand severe treatment, and accordingly it is highly important that the elements thereof, to-wit, the twine fiber and the paper cover, be securely interlocked and intertwisted.

Accordingly, it is the primary object of this invention to improve the former or fro which places the paper around the fiber; to

, provide means a sociated with such a forming device to prevent the paper from running out laterally in between the cover and the base of this former when the twine is being formed; to provide such means, which additionally functions to engage and deflect the edges of the paper strip as it goes into the frog to turn' the same under, thus making a better crimp and consequently a more perfect twine.

Other objects of this invention should be apparent to those skilled in this-art as the disclosure is made.

Briefly, these desirab e objects are achieved in a frog of the type disclosed in the patent above mentioned. which frog or former embodies abase and a hinged upper section or cover connected thereto, there being complementary fiber distributing and paper spreading surfaces between the two parts to cause the paper to be spread around and crimped interlockingly with the fiber to form the twine. r

The improvements of this invention particularly comprise abutment means at opposite sides of the spreading and distributing means, which abutment means is contacted by the moving strip of paper, thereby causing the edges of said paper strip better to be deflected downwardly and turned inwardly relative to the fiber.

An illustrative form of the invention is shown in .the accompanying sheet of drawings. in which Figure 1 is a side elevational view, partly supply,

in section, showing the general organization of the machine for 'making the combination fiber paper twine;

Figure 2 is a longitudinal, central sectional view through the former or frog;

Figure 3 is a cross sectional view through the frog as seen along the line 33 appearing in Figure 2. when viewed in the direction of the arrows shown; a

Figure 4 is a top plan view of the base or lower section with the cover or upper section removed;

Figure 5 is a detail cross sectional view through the cover, as seen along the line 5-5 appearing in Figure 2 when viewed in the direction of the arrows and,

Figure 6 is a bottom plan view of the cover or upper section detached from the base.

The feeding mechanism for the paper ribbon and the fiber sliver is the same as that shown in the patent above mentioned, and consists of a large feeding roller 10 mounted above and adapted to contact with two smaller feeding-rollers 11 and 12, said last two mentioned rollers designed to be positively driven through the mediary of any appropriate driving mechanism. These rollers may be supported in any suitable manner, the roller 10 preferably being journaled in a slidable journal box and having suitable weighting devices for pressing it in contact with the rollers 11 and 12.

The fiber in the form of a sliver is fed to the feeding rollers by the usual gill bars 13 and gill pins 14 in a manner well known in this art. The ribbon of paper 15 is drawn by the feeding rollers from a suitable source of such as a roll, and before reaching the feeding rollers, passes under an idler wheel 16.

The feeding rollers 10, 11 and 12 ositively draw the paperand the fiber sliver f drwardl and feed them to the former or frog 17 whic is suitably mounted on the frame of the ma chinein advance of the feeding rollers, as shown. In the present instance the frog 17 comprises two main sections, to-wit, a stationary base or lower section 18 and a hinged cover or upper section 19, which is pivotally mounted on a pin 20 carried by upwardly ex- 100 tending lugs 21 secured to or formed as a part of the stationary section 18. The exterior surface of the frog or former is conical in shape and 9. lug 22 extends upwardly from the hinged section 19 which provides a convenient hand hold to be utilized in lifting the hinged section. The hinged sect on may be held securely in place on the stationary section by any appropriate form of latching mechanism 23, as shown and described in the prior patent mentioned. Accordinglv, this latching mechanism will not be described in deta l.

The interior of the hinged cover section 19 is cut away or hollowed out, as shown in the cross sectional views in Figures 3 and 5, the interior wall conforming in shape to a half of a hollow cone. The stationary 'base section 18 is provided at its rear end with a concave port on that receives an insert frog member 24 having a concave surface 25 at its back end, from which .rises a convexed, central ridge 26 having an upper. straight horizontal edge, as shown in Figure 2. terminating at its front in a pointed end 27, while the rear end of this rid e curves down and slopes to a rear point 28. Between the lower section 18 and the frog insert piece 24. and on each side of the convex, enlarged part 26, is a roove 29 semi-circuiar in cross section, of the k nd shown in the previous patent ment oned. The hack end of the frog insert 24 has flanges 30 bent out laterallv to engage the members 21 of the lower section or base 18. and a screw 31 is provided securely to hold the frog insert in osition in the base 18.

llhe paper enters the former above the fiher, as shown in Figure 1. and comes into contact with and is guided by the inner wall of the hinged sectionand is therebv transversely curved. as shown in Figure 3. and in the prior patent. The portion of the fiber not already in contact with the pa er. due to the pressing and creasing operating of the roller 10 as it enters the frog, is uided bv the concave rear portion 25. and. as it reaches the convex portion of the ridged part 26, is distributed transversely. or spread across the width of the paper which is dis osed above it. The filoer and paper are held in contact with the convex surface 26 by the upper hinged section of the former.

For the purpose of better interlocking the paper cover with the sl ver, abutments are provided on opposite sides of the fiber d stributing and paper spreading surfaces inside of the frog. Accordin ly. the cover section 19 has securelv fitted thereinto two de pend ng abutments in the form of pins 32, which are adapted. when the cover: is down, to seat in recesses 33 disposed one each n the grooves .29. It is to be noted that the inner surface of these pins are recessed as at 34 to form an arcuated surface. Accordinglv, when the edge of the paper strip is contacted forced downwardly and inwardly with respect to the sliver, thereby insuring that a better crimpin of the paper will result with.

respect to the fiber. Further, these pins prevent lateral running of the paper outwardly between the sections, which would, of course, be highly objectionable.

As stated in the previous patent, the pressure of the roller 10 on the paper ribbon forces the ribbon against the loose fibers and thereby produces longitudinal creases in the paper. As the paper approaches the forward end of the frog, the side edges of the paper have been curled, since the conical shape of the former and the action of the pins 32 cause the paper to assume a smaller space as it approaches the front end of the frog. The turned down edges of the paper, therefore, are forced into the grooves 29, as shown in Figure 3, disposed at the sides of the convex portion 26. As the paper reaches the front end of the former, the inwardly curved edges are further curved in an obvious manner, bea cause the convex surface 26 draws out into a point 27.

After leavin the frog, the paper passes through a crus er 35 and a nipper 36, and thence to a suitable spinning'mechanism.

From this disclosure it will now be appreciated that the deflecting action of the abutments 32 materially enhances the operation of turning and deflecting the edges of the paper, which obviously must result in a better covering of the paper with respect to the fiber sliver.

While there has been shown but one embodiment of the invention in the above specification, it should be understood that the 1.,

same is capable of modifications and that modifications may he employed without departing from the spirit and scope of the invention as expressed in the following claims.

What is claimed is:

1. A. former for fiber paper twine machines, said former comprising upper and lower sections, cooperating paper and fiber guiding and distributing surfaces on adjoining faces of the sections, and abutments opposite sides of said surfaces for causing the edges of the paper to he tucked under the fiber, said abutments augmenting the tucking action of said surfaces and preventing the paper from running out laterally of the sections.

2. A former for fiber paper twine machines,

said former comprising upper and lower sections. cooperating paper and fiber guiding and distributing surfaces on adjoining faces of the sections. and vertical pins at opposite sides of said surfaces for causing the edges of the paper to be tucked under the fiber. 3. A former for fiber paper twine machines, said former comprising upper and the fiber, said lower sections, cooperating aper and fiber guldlng and distributing sur aces on adjoinmg faces of the sections, and vertical pins at opposite sides of said surfaces for causmg the edges of the aper to be tucked under pins aving their inner edges arcuated.

4. A former for fiber paper twine machines, said former comprisin a lower sec tion, including fiber distributing means, an upper section pivotally connected to the lower section and including paper spreading means, and an abutment on each side of the distributing and spreading means for turning the edges of the paper downwardly and inwardly, said abutments augmenting the tucking action of the surfaces and preventing the lateral running out of the paper between the sections.

5. A former for fiber paper twine machines, said former comprising a lower section, including fiber distributing means, an upper section pivotally connected to the lower section and including paper spreading means,

and a pin carried by one of the sections on each side of the distributing and spreading means for turning the edges of the paper downwardly and inwardly. said pins adapted to fit into recesses in the other section.

6. A'former for fiber paper twine machines, said former comprising a lower section, including fiber distributing means, an upper section pivotally connected to the ins carrie by one of the sections on each si e of the distributing and spreading means for turning the edges of the paper downwardly and inwardly, said pins having their inner faces recessed to form guide surfaces.

In testimony whereof I aflix my signature.

HENRY. S. HEARS.

lower section and including paper spreading means, and vertically disposed 

